Former Met and Yankee Darryl Strawberry got into a verbal tussle with some Nassau County residents when he was shut out of a public meeting on his plan to develop a sports megaplex there.

He and developer Phil Tavella — who, at the cash-strapped county’s urging, has proposed leasing portions of Cedar Creek Park to house the $26 million complex — hit the roof Wednesday night when they were barred from Wantagh HS.

“They wouldn’t let us speak. They wouldn’t even let us in,” said Strawberry, who has promised to devote free programs and clinics to special-needs kids. “One gentleman was very rude and said nasty things to us — and we’re just trying to help.”